Current Clamps
DC 0-100V Voltmeter Amperemeter DC 0-5A 10A 20A 50A 100A 200A 300A 500A 1000A Digital LED Voltage and Current 0.28-inch Display Black Case
1, 2A, 5A, 10A, with built-in shunt.
2. If the current exceeds 10A, a shunt must be used to work, even if it is 0.1A, otherwise it will burn out.
3. For currents exceeding 10A, the shunt is not built-in and needs to be purchased separately.
(1) If you have a shunt, please note the specifications of your shunt

(1) When two or more instruments are installed on one device. (2) When an isolated power supply cannot be used.

Instrument power supply: two-wire terminal
Black wire: negative pole of power supply.
Red wire: positive pole of power supply.
Test terminal: three-wire terminal
COM (black line): test common terminal (COM is the common negative pole of the voltmeter and ammeter)
V+ (red wire): test positive voltage input
A+ (yellow line): Test positive current input. Only connect to the negative pole of the load and the negative pole of the load power supply.
Applicable to "above 10A", a shunt must be added:

Dimensions: 48x29x21mm
Working temperature: -10~+50 degrees
Supply voltage: DC3.5-30V
Accuracy grade: 1% +/- 2 digits
Model: YB27VA

Display type: 0.28 inch LED
Mounting holes: 45.5x26.5 mm
Test voltage: DC0-100V
Test current: /2A/5A/10A/20A/50A/100A/200A...1000A
Features: Five lines